.flex {
  display: flex;
}
.flex-around {
  display: flex;
  justify-content: space-between;
}
.flex-1 {
  flex: 1;
}
.pageWrapper {
  min-height: 100vh;
  background: #f6f6fa;
}
.btn-active {
  position: relative;
  overflow: hidden;
}
.btn-active:active::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.1);
}
